edged for one inch with gold ribbon Hoods Most hoods are of the Cambridge Full [f1] shape in the Groves classification system with the exception of the Certificates and Diplomas hood, which is of a modified Aberdeen [a7] shape. All have purple neckbands with a centrally-placed band of gold ribbon. Excepting those of doctors, all hoods are of black corded material. Certificates and Diplomas Diplomas and Certificates - self-lined with a narrow band of purple within the cowl; Bachelors Bachelors requiring five or more years of study (e.g. MBChB) - a full lining of purple, trimmed within the cowl with two ribbons, the outer of gold and the inner of red All other Bachelors - a broad facing of purple within the cowl, trimmed with a single band of gold ribbon; Masters Undergraduate Masters - a full lining of purple trimmed with two bands of gold ribbon within the cowl; Master of Philosophy - a full lining of purple trimmed with a broad band of gold ribbon within the cowl and a maroon edging on the cape All other Post-Graduate Masters - a full lining of purple carried over as an edging on the cape; Doctors Higher Doctorates - scarlet (woollen) cloth fully lined with purple, the cape edged in gold; Other Doctorates - maroon (woollen) cloth fully lined with purple carried over as an edging on the cape; Caps Bachelors and Masters - a standard black cloth mortarboard with a black silk tassel. Doctors - a black cloth or velvet Tudor bonnet with a cord and tassels of gold. Officers Officers of the university wear special academic dress on ceremonial occasions. The robe of the Chancellor is of purple silk damask with flap collar and closed, square ended sleeves [d4], edged with silver lace throughout and trimmed with silver frogs on the sleeves, and with the university arms, crest and motto embroidered on each of the revers at chest height. The cap is a black velvet Tudor bonnet with a cord and tassels of silver. The robes worn by other university officers, such as the Vice-Chancellor, Deans and Registrars, and those deputising for them, are similar. The mace-bearer wears a gown with square ended sleeves of plain purple silk or stuff, edged for one inch in gold ribbon, and a black Tudor bonnet with cord and tassels of gold. Major benefactors of the university and other people associated with